In an interview with Newsmax TV's John Bachman, the former Fox News host and author of "Killing England" predicted Franken would leave the Senate "very soon," news Minnesota Public Radio News reported later Wednesday afternoon.

"He can't go on," O'Reilly told Bachman, adding he personally does not like Franken and has "recused myself from analyzing" the embattled senator.

"Years ago he lied about me, not a good guy," O'Reilly said, without elaborating. "So I've really not gone into what was alleged against him. I don't think that'd be fair to do."

"His future is not in politics, let's put it that way," he added. "I think he'll be gone very soon."

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O'Reilly said the growing sex harassment scandal in the nation has become, however, a "witch hunt."

"I think that you have to want one thing in all of these cases and that's justice, and each case is different," he said.

"We do have in this country now a witch hunt, no question about it," he said. "And the lawyers know it, so if somebody comes in and say 'I was abused' . . . lawyers know they can get a lot of headlines sympathetic to their client."

He added if someone is sexually abused and steps forward, "that takes an act of courage."

But, he said, "you can't say that everyone who lodges an accusation is a victim. That has to proven."

"The media is certainly not looking for the truth, they're looking for the headline, the sensationalism. The media doesn't care really what happened unless they don't like you, then they want to put you out of business.

"So the American people, they need to be cautious when evaluating these things and it comes down a lot along party lines . . . But I think, to be fair, if you want justice, you have to step back and evaluate each situation differently."

O'Reilly also weighed in on the sexual misconduct scandal enveloping Alabama GOP Senate candidate Roy Moore, predicting if the former judge gets elected Dec. 12, he will "walk right into" an ethics investigation in the upper chamber.

"In the meantime, he does vote Republican, which is why the [Republican National Committee] and President [Donald] Trump did what they did," he added. "They want the 52 Republican senators to stay intact. . . . But I do believe at this point it hurts the Republican Party in general to ally itself with Roy Moore."